The 60-year-old battled colon cancer 10-years ago but decided to take this precaution to lessen her chances of further cancer scares.

Speaking to Hello! Magazine, she said: ‘As soon as I found out I had the breast cancer gene, I thought: “The odds are not in my favour”.

‘I’ve had cancer before and I didn’t want to live under that cloud: I decided to just take everything off, and had a double mastectomy.’

She underwent a 13-hour operation but says she can’t feel sorry for herself and wants to focus on being a grandmother.

Sharon became a grandparent for the first time this year to Pearl, the daughter of her son Jack and his wife Lisa Stelly.

Sharon is married to rocker Ozzy Osbourne (Picture: AP)

‘For me, it wasn’t a big decision, it was a no-brainer. I didn’t want to live the rest of my life with that shadow hanging over me. I want to be around for a long time and be a grandmother to Pearl,’ continued. ‘I didn’t even think of my breasts in a nostalgic way, I just wanted to be able to live my life without that fear all the time.’

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Sharon then added: ‘The surgery was 13 hours in total – the recovery was definitely not pleasant. They reconstructed my breasts at the same time: they’re very small now. I’m happy with them but I wasn’t that concerned with how they would look – I wanted to be cancer-free.’